/*
 * Copyright 2011 Katsunori Koyanagi
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package sweezy.swf.converter
{

	public class UnitConverter
	{

		public static function pixelToTwip(px:Number, defaultValue:Number = 0):Number
		{
			if (isNaN(px))
			{
				return defaultValue;
			}

			return int(px * 20);
		}

		public static function twipToPixel(twip:Number, defaultValue:Number = 0):Number
		{
			if (isNaN(twip))
			{
				return defaultValue;
			}

			return twip / 20;
		}
	}
}
